Home / 136,415,671.78-188,253,337.52-74,536,454.02

Finding the Fourth Proportional to 136,415,671.78, 188,253,337.52 and 74,536,454.02

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Solution

The fourth proportional to 136,415,671.78, 188,253,337.52 and 74,536,454.02 is: 102,860,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,415,671.78 : 188,253,337.52 = 74,536,454.02 : x
  2. Step 2: Convert to fraction form
    136,415,671.78/188,253,337.52 = 74,536,454.02/x
  3. Step 3: Cross multiply
    136,415,671.78x = 188,253,337.52 × 74,536,454.02
  4. Step 4: Simplify right side
    136,415,671.78x = 14,031,736,236,171,020
  5. Step 5: Solve for x
    x = 14,031,736,236,171,020/136,415,671.78
  6. Step 6: Final answer
    x = 102,860,148.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.